Nut-lock.



No. 675,99l. Patented lune ll, l90l. W. E. WHITE.

NUT LOCK.

(Application filed Apr. 10, 1901.) (No Model.)

WILLIAM E. \VIIITE, OF POLLOKSVILLE, NORTH CAROLINA.

NUT-LOCK.

SPECIFICATION formingpart of Letters Patent No. 675,991, dated June 1 1,1901.

Application filed April 10 1901.

To It whom it IIMU/ con/corn:

Be it known that I, WILLIAM E. WHITE, a citizen of the United States,residing at Polloksville, in the county of Jones and State of NorthCarolina, have invented a new and useful Nut-Lock, of which thefollowing is a specification.

This invention relates to nut-locks, and has for its object toparticularly arrange for the locking of hub-attaching devices to theaxlespindlcs and to provide for the convenient application and removalthereof. It is furthermore designed to arrange the locking mechanism sothat the application of a wrench to the nut will throw the locking partsout of their locked positions, whereby the application and removal of awrench automatically effects the respective unlocking and locking of thenut without particular attention to the locking parts, therebyfacilitating the application and removal of the nut, especially in thedark or where it is ditlicult to carefully examine the nut.

\Vith these and other objects in view the present invention consists inthe combination and arrangement of parts, as will be hereinafter morefully described, shown in the accompanyingdrawings,andparticularlypointed out in the appended claim, it being understood thatchanges in the form, proportion, size, and minor details maybe madewithin the scope of the claim without departing from the spirit orsacrificing any of the advantages of the invention.

In the drawings, Figure l is a central longitudinal sectional view ofthe outer end portion of an axle-spindle with the present hubattachingdevice applied thereto. Fig. 2 is a side elevation of the nut, with awrench in section, applied thereto and holding the locking parts intheir unlocked positions. Fig. 3 is a transverse sectional view taken onthe line 3 3 of Fig. 2. Fig. 4 is a detail perspective view of ahub-attaching nut constructed in accordance with the present invention.

Like characters of reference designate corresponding parts in all of thefigures of the drawings.

To illustrate the present invention, there has been shown in thedrawings an ordinary hub-attaching nut 1, which is provided in its outerface with a diagonal groove extending Serial No. 55,225. (No model.)

from one corner to the opposite corner thereof for the reception of alocking-bar 2, which extends diametrically across the opening of the nutand is designed to take into a diametric groove formed in the outer endof the part to which the nut is appliedas, for instance, an axle-spindle3. (Shown in Fig. 1.)

At one end of the locking-bar and projected at the inner side thereofthere is a lateral heel 4, which is disposed at an obtuse angle withrespect to the bar and comprising longitudinal angularly-relatcd sidepieces to embrace the adjacent corner edge of the nut. The adjacent edgefaces of the nut are provided with transverse notches or grooves 5 forthe reception of the respective side pieces of the heel and producing areduced rib 6 at the corner of the nut and embraced by the heel, therebeing a bowed or arcuate pivotpin 7 passed through the opposite sides ofthe heel and the rib with its opposite ends upset against the heel,whereby the latter is pivotally connected to the nut. By having thereduced rib the sides of the heel are adapted to form continuations ofthe adjacent edge faces of the nut. A coiled spring 8 is seated in anotch or recess 9 at the back end of the rib and norm ally bearsoutwardly against the outer end of the heel, thereby yieldingly holdingthe locking-bar in the groove across the face of the nut, as shown inFig. 1 of the drawings.

Upon reference to Fig. 2 of the drawings it will be seen that when anordinary socketwrench 10 is applied to the nut the jaws there of willcontact with the outwardly-projected heel portion of the locking-bar,thereby pressing said yieldable heel inwardly and throwing thelocking-bar outwardly from the face of the nut, and thus permitting ofthe nut being screwed to place or removed. Immediately upon the removalof the wrench the spring will throw the locking-bar back into the groovein the face of the nut and also into the corresponding groove in thepart to which the nut is applied, thereby locking the nut.

From the foregoing description it is apparent that the locking-bar isnormally held yieldingly in its locked position and is thrown into anunlocked position by the application of a wrench thereto, so that whenscrewing the nut in place the bar is maintained in its unlocked positionand automatically snaps into locked engagement with the spindle when thewrench is removed. Also when the nut is upon the spindle and a Wrench isapplied thereto the bar is automatically thrown v outwardly out oflocked engagement with the spindle. Thus it does not require carefulexamination of the nut to unlock the same, and it may be readily appliedand removed in the dark and in inconvenient places.

\Vhat is claimed is- A nut, having a diagonal groove formed in the outerface thereof and extending from one corner to the opposite corner, oneof the corners being reduced at one end of the groove, and there beinggrooves formed longitudinally at opposite sides of the reduced cornerforming a rib, a locking-bar normally seated in the diagonal groove, andhaving a terminal lateral heel comprising opposite longitudinalangularly-related side pieces embracing the rib and lying in therespective grooves, a pivot-pin passed through the opposite side piecesand the rib, and a spring interposed between the outer end of the heeland the rib to normally and yieldingly hold the bar in the groove withthe heel projected beyond the peripheral edge of the nut, said heelbeing flush with the peripheral edge of the nut when the locking-bar isthrown outwardly upon its pivotal connection with the nut.

In testimony thatI claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

VILLIAM E. \V IHTE.

\Vitnesses:

T. A. BELL, J. G. BELL.

